“MITRAL KLAPAN PROLAPSASINING TURLI DARAJALARI BO’LGAN BOLALARDA BIRIKTIRUVCHI TO’QIMA DISPLAZIYASINING FENOTIPIK NAMOYON BO’LISH CHASTOTASI”, IJSP, vol. 2, no. 2, pp. 47–50, Feb. 2023, doi: 10.56121/2181-2926-2023-2-2-47-50.